Day: January 29, 2022

An article Highly Selective Hydroboration of Carbonyls by a Manganese Catalyst: Insight into the Reaction Mechanism WOS:000576677500011 published article about ASYMMETRIC REDUCTION; EFFICIENT CATALYST; KETONES; ALDEHYDES; HYDROSILYLATION; COMPLEXES; HYDRIDE; RUTHENIUM; POLY(SILYLETHER)S; HYDROGENATION in [Vijjamarri, Srikanth; O’Denius, Timothy M.; Yao, Bin; Kubatov, Alena; Du, Guodong] Univ North Dakota, Dept Chem, Grand Forks, ND 58202 USA in 2020.0, Cited 81.0. COA of Formula: C8H7NO3. The Name is 1-(4-Nitrophenyl)ethanone. Through research, I have a further understanding and discovery of 100-19-6

Hydroboration of carbonyl compounds is an important transformation in organic chemistry, and a growing interest in catalysis has focused on abundant and nontoxic base metals. Herein we describe an efficient salen manganese catalyst for the hydroboration of a broad range of carbonyl compounds with pinacolborane. The catalytic reactions proceeded rapidly (>99% conversion in <5 min) at room temperature with very low catalyst loadings. High turnover frequency (up to 5700 h(-1)) was observed under these conditions. Several synthetically important functional groups were tolerated, and chemoselective hydroboration of aldehydes over ketones was achieved. The H/D kinetic isotopic effect of borane was determined to be 2.3. The Hammett correlation plot of a series of para-substituted acetophenone substrates, p-X-C6H6COCH3 (X = H, Me, OMe, NO2, Cl, Br, and CF3) yielded a positive slope of rho = +0.99. The crossover products were detected in the competition reaction of catecholborane and deuterated pinacolborane with acetophenone. The findings indicated a potential borane-mediated pathway that could account for the observation of the crossover products. COA of Formula: C8H7NO3. About 1-(4-Nitrophenyl)ethanone, If you have any questions, you can contact Vijjamarri, S; O’Denius, TM; Yao, B; Kubatov, A; Du, GD or concate me.

Reference:
Benzodioxan,
,1,4-Benzodioxane | C8H8O2 – PubChem

An article Chemoselective Hydrogenation of 4-Nitrostyrene to 4-Aminostyrene by Highly Efficient TiO2 Supported Ni3Sn2 Alloy Catalyst WOS:000462602700003 published article about SELECTIVE HYDROGENATION; NITRO-COMPOUNDS; PD/SIO2 CATALYSTS; NITROARENES; NANOPARTICLES; REDUCTION; AMINES; SN; CINNAMALDEHYDE; OXIDE in [Yamanaka, Nobutaka; Hara, Takayoshi; Ichikuni, Nobuyuki; Shimazu, Shogo] Chiba Univ, Dept Appl Chem & Biotechnol, Grad Sch Engn, Inage Ku, 1-33 Yayoi Cho, Chiba 2638522, Japan in 2019.0, Cited 40.0. The Name is 1-(4-Nitrophenyl)ethanone. Through research, I have a further understanding and discovery of 100-19-6. Safety of 1-(4-Nitrophenyl)ethanone

Ni3Sn2 alloy catalysts supported on various metal oxides (TiO2, Al2O3, ZrO2, SnO2, and CeO2) were successfully prepared by simple hydrothermal method and then applied to the hydrogenation of 4-nitrostyrene under H-2 3.0 MPa at 423 K. All the supported catalysts hydrogenated the nitro group more preferentially than the olefin group from the initial reaction stages, showing 100% chemoselectivities towards the desired 4-aminostyrene. This may be attributed to sigma-interaction between the oxygen lone pairs in the nitro group and Sn atoms in Ni3Sn2 alloy. By prolonging the reaction times, the 4-aminostyrene yields increased and finally reached the maximum yields. Among the catalysts, Ni3Sn2/TiO2 alloy catalyst showed the highest catalytic activity with remarkably high chemoselectivity towards 4-aminostyrene. The conversion and chemoselectivity were 100% and 79%, respectively, at a reaction time of only 2.5 h. From the physical and chemical characterization of the supported catalysts, it was clear that the catalytic activity was correlated with H-2 uptake. The application of the best catalyst for the hydrogenation of a wide variety of substituted nitroarenes resulted in the chemoselective formation of the corresponding aminoarenes.

Welcome to talk about 100-19-6, If you have any questions, you can contact Yamanaka, N; Hara, T; Ichikuni, N; Shimazu, S or send Email.. Safety of 1-(4-Nitrophenyl)ethanone

Reference:
Benzodioxan,
,1,4-Benzodioxane | C8H8O2 – PubChem

In 2020 J ORG CHEM published article about TRANS-HYDROBORATION; HYDRIDE; ALKENES; REDUCTION; COMPLEXES; EFFICIENT; IMINES in [Sarkar, Nabin; Bera, Subhadeep; Nembenna, Sharanappa] Homi Bhabha Natl Inst, Sch Chem Sci, Natl Inst Sci Educ & Res, Bhubaneswar 752050, Odisha, India in 2020, Cited 58. The Name is 2,2-Diphenylacetonitrile. Through research, I have a further understanding and discovery of 86-29-3. Name: 2,2-Diphenylacetonitrile

The reaction of LH [L = {(ArNH)(ArN)-C=N-C=(NAr)(NHAr)}; Ar =2,6-Et-2-C6H3] with a commercially available alane amine adduct (H3Al center dot NMe2Et) in toluene resulted in the formation of a conjugated bis-guanidinate (CBG)-supported aluminum dihydride complex, i.e., LAIH(2) (1), in good yield. The new complex has been thoroughly characterized by multinuclear magnetic resonance, IR, mass, and elemental analyses, including single-crystal structural studies. Further, we have demonstrated the aluminum-catalyzed hydroboration of a variety of nitriles and alkynes. Moreover, aluminum-catalyzed hydroboration is expanded to more challenging substrates such as alkene, pyridine, imine, carbodiimide, and isocyanides. More importantly, we have shown that the aluminum dihydride catalyzed both intra- and intermolecular chemoselective hydroboration of nitriles and alkynes over other reducible functionalities for the first time.

Name: 2,2-Diphenylacetonitrile. Bye, fridends, I hope you can learn more about C14H11N, If you have any questions, you can browse other blog as well. See you lster.

Reference:
Benzodioxan,
,1,4-Benzodioxane | C8H8O2 – PubChem

Authors Giboulot, S; Baldino, S; Ballico, M; Figliolia, R; Pothig, A; Zhang, SM; Zuccaccia, D; Baratta, W in AMER CHEMICAL SOC published article about ASYMMETRIC TRANSFER HYDROGENATION; CHEMOSELECTIVE TRANSFER HYDROGENATION; LIGAND BIFUNCTIONAL CATALYSIS; C BOND FORMATION; HOMOGENEOUS RUTHENIUM; MECHANISTIC ASPECTS; 2-(AMINOMETHYL) PYRIDINE; COMPLEXES SYNTHESIS; PHOSPHINE-LIGANDS; OSMIUM COMPLEXES in [Giboulot, Steven; Baldino, Salvatore; Ballico, Maurizio; Figliolia, Rosario; Zhang, Shuanming; Zuccaccia, Daniele; Baratta, Walter] Univ Udine, Dipartimento DI4A, Via Cotonificio 108, I-33100 Udine, Italy; [Baldino, Salvatore] Univ Torino, Dipartimento Chim, Via Pietro Giuria 7, I-10125 Turin, Italy; [Giboulot, Steven] Johnson Matthey, 28 Cambridge Sci Pk,Milton Rd, Cambridge CB4 0FP, England; [Poethig, Alexander] Tech Univ Munich, Dept Chem, Lichtenbergstr 4, D-85747 Garching, Germany; [Poethig, Alexander] Tech Univ Munich, Catalysis Res Ctr, Lichtenbergstr 4, D-85747 Garching, Germany; [Zhang, Shuanming] JITRI, 699 Xuanwu Ave, Nanjing 210008, Jiangsu, Peoples R China in 2019.0, Cited 158.0. Recommanded Product: 1-(4-Nitrophenyl)ethanone. The Name is 1-(4-Nitrophenyl)ethanone. Through research, I have a further understanding and discovery of 100-19-6

The bidentate HCNN dicarbonyl ruthenium complexes trans,cis-[RuCl2(HCNN)(CO)(2)] (1-3) and trans,cis-[RuCl2(ampy)(CO)(2)] (1a) were prepared by reaction of [RuCl2(CO)(2)](n) with 1-[6-(4′-methylphenyl)pyridin-2-yl]methanamine, benzo[h]quinoline (HCNN), and 2-(aminomethyl)pyridine (ampy) ligands. Alternatively, the derivatives 13 were obtained from the reaction of RuCl3 hydrate with HCO2H and HCNN. The pincer CNN cis-[RuCl(CNN)(CO)(2)] (4) was isolated from 1 by reaction with NEt3. The monocarbonyl complexes trans-[RuCl2(HCNN)(PPh3)(CO)] (5-7) were synthesized from [RuCl2(dmf)(PPh3)2(CO)] and HCNN ligands, while the diacetate trans-[Ru(OAc)(2)(HCNN)(PPh3)(CO)] (8) was obtained from [Ru(OAc)(2)(PPh3)(2)(CO)]. Carbonylation of cis-[RuCl(CNN)(PPh3)(2)] with CO afforded the pincer derivatives [RuCl(CNN)(PPh3)(CO)] (9-11). Treatment of 9 with Na[BArf](4) and PPh3 gave the cationic complex trans-[Ru(CNN)(PPh3)(2)(CO)][BAr4f] (12). The dicarbonyl derivatives 1-4, in the presence of PPh3 or PCy3, and the monocarbonyl complexes 5-12 catalyzed the transfer hydrogenation (TH) of acetophenone (a) in 2-propanol at reflux (S/C = 1000100000 and TOF up to 100000 h(-1)). Compounds 13, with PCy3, and 6 and 8-10 were proven to catalyze the TH of carbonyl compounds, including alpha,beta-unsaturated aldehydes and bulky ketones (S/C and TOF up to 10000 and 100000 h(-1), respectively). The derivatives 1-3 with PCy3 and 5 and 6 catalyzed the hydrogenation (HY) of a (H-2, 30 bar) at 70 degrees C (S/C = 2000-10000). Complex 5 was active in the HY of diaryl ketones and aryl methyl ketones, leading to complete conversion at S/C = 10000.

Welcome to talk about 100-19-6, If you have any questions, you can contact Giboulot, S; Baldino, S; Ballico, M; Figliolia, R; Pothig, A; Zhang, SM; Zuccaccia, D; Baratta, W or send Email.. Recommanded Product: 1-(4-Nitrophenyl)ethanone

Reference:
Benzodioxan,
,1,4-Benzodioxane | C8H8O2 – PubChem

Product Details of 100-19-6. In 2019.0 ACS CATAL published article about C BOND-CLEAVAGE; AEROBIC OXIDATION; ELECTRON-TRANSFER; ENAMINO ESTERS; FACILE ACCESS; H ACTIVATION; TRANSITION; TEMPO; CYCLIZATION; EFFICIENT in [Zhan, Jun-Long; Wu, Meng-Wei; Wei, Dian; Wei, Bang-Yi; Jiang, Yu; Yu, Wei; Han, Bing] Lanzhou Univ, Coll Chem & Chem Engn, State Key Lab Appl Organ Chem, Lanzhou 730000, Gansu, Peoples R China in 2019.0, Cited 140.0. The Name is 1-(4-Nitrophenyl)ethanone. Through research, I have a further understanding and discovery of 100-19-6.

A 4-HO-TEMPO-catalyzed redox strategy for the synthesis of pyridines through the annulation of cyclopropanols and oxime acetates has been developed. This protocol features good functional group tolerance and high chemoselectivity and also promises to be efficient for the late-stage functionalization of skeletons of drugs and natural products. Mechanism studies indicate that the reaction involves the in situ generated alpha,beta-unsaturated ketones and imines as the key intermediates, which are derived from cyclopropanols and oxime acetates via a TEMPO/TEMPOH redox cycle, respectively. The pyridine products are formed as a result of annulation of enones with imines followed by TEMPO-catalyzed oxidative aromatization by excess oxime acetates. This method not only realizes the TEMPO-catalyzed redox reaction but also broadens the frontiers for TEMPO in catalysis.

Product Details of 100-19-6. Bye, fridends, I hope you can learn more about C8H7NO3, If you have any questions, you can browse other blog as well. See you lster.

Reference:
Benzodioxan,
,1,4-Benzodioxane | C8H8O2 – PubChem

Formula: C8H7NO3. Recently I am researching about RING-OPENING POLYMERIZATION; ALKALINE-EARTH METALS; INTRAMOLECULAR HYDROAMINATION; EPSILON-CAPROLACTONE; MAGNESIUM COMPLEXES; EFFICIENT CATALYSTS; HYDRIDE COMPLEXES; ZINC-COMPLEXES; RARE-EARTH; HYDROBORATION, Saw an article supported by the KIT; German Research Foundation (DFG)German Research Foundation (DFG) [INST 40/467-1 FUGG]; Projekt DEAL. Published in WILEY-V C H VERLAG GMBH in WEINHEIM ,Authors: Goswami, B; Feuerstein, TJ; Yadav, R; Koppe, R; Lebedkin, S; Kappes, MM; Roesky, PW. The CAS is 100-19-6. Through research, I have a further understanding and discovery of 1-(4-Nitrophenyl)ethanone

The synthesis of calcium complexes ligated by three different chiral iminophosphonamide ligands, L-H (L=[Ph2P{N(R)CH(CH3)Ph}(2)]), L ‘-H (L ‘=[Ph2P{NDipp}{N(R)CH(CH3)Ph}]), (Dipp=2,6-(Pr2C6H3)-Pr-i), and L ”-H (L ”=[Ph2P{N(R)CH(CH3)naph}(2)]), (naph=naphthyl) is presented. The resulting structures [L2Ca], [L ‘ Ca-2], and [L ” Ca-2] represent the first examples of enantiopure homoleptic calcium complexes based on this type of ligands. The calcium complexes show blue-green photoluminescence (PL) in the solid state, which is especially bright at low temperatures. Whereas the emission of [L ” Ca-2] is assigned to the fluorescence of naphthyl groups, the PL of [L2Ca] and [L ‘ Ca-2] is contributed by long-lived phosphorescence and thermally activated delayed fluorescence (TADF), with a strong variation of the PL lifetimes over the temperature range of 5-295 K. Furthermore, an excellent catalytic activity was found for these complexes in hydroboration of ketones at room temperature, although no enantioselectivity was achieved.

Formula: C8H7NO3. Bye, fridends, I hope you can learn more about C8H7NO3, If you have any questions, you can browse other blog as well. See you lster.

Reference:
Benzodioxan,
,1,4-Benzodioxane | C8H8O2 – PubChem

I found the field of Chemistry very interesting. Saw the article Palladium(II)-Catalyzed Aminotrifluoromethoxylation of Alkenes: Mechanistic Insight into the Effect of N-Protecting Groups published in 2020. Formula: C14H11N, Reprint Addresses Liu, GS (corresponding author), Chinese Acad Sci, Shanghai Inst Organ Chem, State Key Lab Organometall Chem, Ctr Excellence Mol Synth, 345 Lingling Rd, Shanghai 200032, Peoples R China.; Liu, GS (corresponding author), Chinese Acad Sci, Shanghai Inst Organ Chem, Shanghai Hongkong Joint Lab Chem Synth, 345 Lingling Rd, Shanghai 200032, Peoples R China.. The CAS is 86-29-3. Through research, I have a further understanding and discovery of 2,2-Diphenylacetonitrile

The Summary of main observation and conclusion An efficient palladium-catalyzed regioselective 5-exo aminotrifluoromethoxylation of alkenes has been established herein, which provides a practical route towards the synthesis of OCF3-containing pyrrolidines. tert-Butyloxycarbonyl (Boc) as an amino protecting group plays a significant role in both the chemo- and regioselectivities. In addition, preliminary mechanistic studies reveal that the amino protecting group of substrates and the counter anion of palladium catalyst play critical roles in reaction efficiency presumably due to an isomerization of alkyl- Pd(II) intermediates. Moreover, the asymmetric 5-exo aminotrifluoromethoxylation reaction has also been achieved by introducing a sterically bulky pyridinyl-oxazoline ligand.

Welcome to talk about 86-29-3, If you have any questions, you can contact Chen, CH; Hou, CQ; Chen, PH; Liu, GS or send Email.. Formula: C14H11N

Reference:
Benzodioxan,
,1,4-Benzodioxane | C8H8O2 – PubChem

I found the field of Chemistry very interesting. Saw the article Half-Sandwich Ruthenium Complexes for One-Pot Synthesis of Quinolines and Tetrahydroquinolines: Diverse Catalytic Activity in the Coupled Cyclization and Hydrogenation Process published in 2020.0. Quality Control of 1-(4-Nitrophenyl)ethanone, Reprint Addresses Yao, ZJ (corresponding author), Shanghai Inst Technol, Sch Chem & Environm Engn, Shanghai 201418, Peoples R China.; Yao, ZJ (corresponding author), Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Fujian, Peoples R China.. The CAS is 100-19-6. Through research, I have a further understanding and discovery of 1-(4-Nitrophenyl)ethanone

Four types of half-sandwich ruthenium complexes with an N,O-coordinate mode based on hydroxyindanone-imine ligands have been prepared in good yields. These stable ruthenium complexes exhibited high activity in the catalytic synthesis of quinolines from the reactions of amino alcohols with different 3 types of ketones or secondary alcohols under very mild conditions. Moreover, the methodology for the direct one-pot synthesis of tetrahydroquinoline derivatives from amino alcohols and ketones has been also developed on the basis of the continuous catalytic activity of this ruthenium catalyst in the selective hydrogenation of the obtained quinoline derivatives with a low catalyst loading. The corresponding products, quinolines and tetrahydroquinoline derivatives, were afforded in good to excellent yields. The efficient and diverse catalytic activity of these ruthenium complexes suggested their potential large-scale application. All of the ruthenium complexes were characterized by various spectroscopies to confirm their structures.

Bye, fridends, I hope you can learn more about C8H7NO3, If you have any questions, you can browse other blog as well. See you lster.. Quality Control of 1-(4-Nitrophenyl)ethanone

Reference:
Benzodioxan,
,1,4-Benzodioxane | C8H8O2 – PubChem

In 2021 ADV SYNTH CATAL published article about REDUCTIVE N-HETEROCYCLIZATION; ONE-POT SYNTHESIS; 4(3H)-QUINAZOLINONE DERIVATIVES; CYCLIZATION REACTION; O-IODOANILINES; QUINAZOLINONES; CHEMISTRY; CYCLOCARBONYLATION; FLUORINE; AMINES in [Wang, Le-Cheng; Zhang, Yu; Chen, Zhengkai] Zhejiang Sci Tech Univ, Dept Chem, Hangzhou 310018, Peoples R China; [Wu, Xiao-Feng] Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Dalian 116023, Liaoning, Peoples R China; [Wu, Xiao-Feng] Univ Rostock, Leibniz Inst Katalyse eV, Albert Einstein Str 29a, D-18059 Rostock, Germany in 2021, Cited 54. The Name is 1-(4-Nitrophenyl)ethanone. Through research, I have a further understanding and discovery of 100-19-6. Formula: C8H7NO3

A procedure on palladium-catalyzed carbonylative reaction of trifluoroacetimidoyl chlorides and nitro compounds for the construction of pharmaceutically valuable 2-(trifluoromethyl)quinazolin-4(3H)-ones has been achieved. In this transformation, Mo(CO)(6) has been used both as a convenient CO source and a reducing reagent. This newly developed protocol is compatible with various nitro compounds and can be readily scaled up to 1 mmol scale.

Bye, fridends, I hope you can learn more about C8H7NO3, If you have any questions, you can browse other blog as well. See you lster.. Formula: C8H7NO3

Reference:
Benzodioxan,
,1,4-Benzodioxane | C8H8O2 – PubChem

Quality Control of 1-(4-Nitrophenyl)ethanone. Fu, Y; Li, QZ; Li, MP; Du, ZY in [Fu, Ying; Li, Quan-Zhou; Li, Ming-Peng; Du, Zhengyin] Northwest Normal Univ, Coll Chem & Chem Engn, 967 Anning East Rd, Lanzhou, Peoples R China published Aerobic alpha-Sulfonylation of Ketones with Zinc Sulfinates in Aqueous Micellar Media: Highly Selective Access to beta-Keto Sulfones in 2020.0, Cited 52.0. The Name is 1-(4-Nitrophenyl)ethanone. Through research, I have a further understanding and discovery of 100-19-6.

An efficient, inexpensive and environmentally friendly synthesis of beta-ketosulfones, via NaI-catalyzed oxidative sulfonylation of ketones with zinc sulfinates, employing ethylene dibromide (EDB) and air as the oxidants, is described. EDB was shown to be a mild organic oxidant to convert NaI into molecular iodine that promote the cross-coupling reactions of zinc sulfinates with ketones, producing beta-ketosulfones. Mechanistic studies indicated that a radical pathway might be involved in the reaction process. The key feature of the present protocol is the far greater solubility of NaI and sulfinates in micellar arrays present in aqueous solution where the oxidative coupling reactions are taking place.

Welcome to talk about 100-19-6, If you have any questions, you can contact Fu, Y; Li, QZ; Li, MP; Du, ZY or send Email.. Quality Control of 1-(4-Nitrophenyl)ethanone

Reference:
Benzodioxan,
,1,4-Benzodioxane | C8H8O2 – PubChem